[Ohrrpgce] SVN: teeemcee/12936 Fix individual formation editor not cancelling adding new formation prop

[subversion at HamsterRepublic.com]

teeemcee
2022-04-25 21:59:59 -0700 (Mon, 25 Apr 2022)
186
Fix individual formation editor not cancelling adding new formation properly

If you added a new formation and then cancelled, it would go to the last
formation, e.g. in the thingbrowser
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U   wip/formationedit.bas